Improvement in railroad-rails



UNITED STATES PATENT Ormea.

LLOYD DAY AND MILTON DAY, OF CARROLL COUNTY, AND ANDRE\V MER- CER, OFRICHD., OF HOVARD COUNTY, MARYLAND.

IMPROVEMENT IN RAILROAD-RAILS.

Specification forming part of Letters Patent No. 33,696, dated Novemberl2, 1861.

To all whom t may concern.-

Be it known that we, LLOYD DAY and MIL- TON DAY, of the county ofCarroll, in the State of Maryland, and ANDREW MERCER, or RICHD.; ofHoward county and State aforesaid, have invented a new and improved formof continuous railroad-rails, and a new method of combining a triangularbar with a chair or base bar for its reception by braces, supports, orfastenings; andk we do hereby declare that the following is a full,clear, and exact description of the construction and operation of thesame, reference being had to the annexeddrawings, making a part of thisspecification, in which- Figure l represents a side elevation with thetread or triangular bar extending over the base; Fig'. 2, a top view ofthe said elevation; Fig. 3, a cross vertical section at the line X andX; Fig. 4, a cross-section of modification ot' our improved rail.

The nature of our invention consists in a new and improved form ofcontinuous railroad-rail and a new method of combining a triangular barwith a chair or base bar for its reception by braces, supports, orfastenings.

To enable others skilled in the art to make and use our invention, wewill proceed to describe its construction and operation.

W'e construct our improved rail with a chair or base bar the full lengthot' the triangular bar formed with a base similar to that of the T-rail,with two wings parted from the center of any required thickness andleaning at equal angles from a perpendicular line, and leaving betweenthem a trough or groove and somewhat resembling as they rise from thebase the letter V, and a triangular bar with three treads or faces, eachof which has a slight curve in such shape as to make a proper bearingfor the car-wheels in ordinary use, which three treads or faces each aresimilar to the tread of the T-rail, and are brought together in equalangles, forming thereby a solid triangular bar with the corners curvedshortly and the treads or faces curved slightly, as stated.

lVe make our rail any required length, the triangular bar to be twistedin forging, so that the ber of the iron will run around it once aboutevery twelve inches to prevent flaking off, or forged straight, as maybe desired. The rail is perforated with a set of longitudinallyoblongholes pierced from the center of the tread downward, making theirappearance at the opposite corner of the triangular bar; and the chairor base bar has a corresponding set of holes, also pierced downward andmaking their appearance under the bottom thereof. The said holes areelongated more at their entrance in the triangular bar, so as to receivebraces, supports, or fastenings with heads to t, which braces, supports,or fastenings are driven through the triangular bar or chair or basebar, making their appearance under the bottom of the chair or base barbetween the cross-ties, and the said braces, supports, or fastenings arepierced under the bottom of the chair or base bar in such manner as toreceive a key tightly driven in and then so twisted as to prevent itfrom working out, as represented in Fig. 3, binding the triangular barand chair or base bar firmly together, thus forming the continuous rail,as represented in Fig. l, the chair or base bar being rst put down uponthe cross-ties, the ends thereof being met and secured by any of theknown appliances used for similar purposes. We then put the triangularbar down so as to fill the trough or groove, which is shaped tocorrespond with and elnbrace two sides of the triangular bar and extendit over half of two chairs or base bars, as also represented in Fig. l,and the chairs or base bars likewise each receive the half ot' twotriangular bars, and when in this manner bound together with theaforenamed braces, supports, or fastenings forms a continuous, firm, andeven rail, as represented in Fig. 2; and to reverse or revolve thetriangular bar to give a smoother bearing tothe wheels when desired, itshould be pierced with alternate sets of holespierced from each face ofthe triangular bar, as before described, instead of but one set, thechair or base bar being likewise pierced to correspond with suchalternates, and the alternate holes in the triangular bar are filledwith plugs made the exact form of the braces, supports, or fastenings,cut off smoothly and evenly wit-h the corner of the triangular bar, theheads of which plugs will always be downward and will consequently beconfined by one or the other wing of the chair or base bar, and in caseof reversing or revolving the triangular bar the said plugs are to beremoved A new and improved `['Orm Of continuons railroad-rail and a newmethod Of combining; the triangular bar with the ehair Or base bar 'forits reception, with braces, supports, Or fastenings, substantially asdescribed.

September 28, 1861.

LLOYD DAY. MILTON DAY. ANDREWV MERCER, OF RIO/HD.

Attest.:

JOHN S. I-IOLLINGSHEAD, BAKER W. JOHNSON.

